Smallest primes whose residue modulo its difference from the next prime is 2n-1.

Terms

a(0) =3a(1) =7a(2) =23a(3) =199a(4) =139a(5) =467a(6) =293a(7) =1951a(8) =1259a(9) =2179a(10) =3739a(11) =3271a(12) =12011a(13) =45779a(14) =18869a(15) =14107a(16) =62233a(17) =27143a(18) =34981a(19) =44293a(20) =102701a(21) =25471a(22) =91033a(23) =117443a(24) =107377a(25) =445363a(26) =181303a(27) =153001a(28) =399793a(29) =195599